Difference between revisions of "Geometry (44 MeV LINAC exit port)"

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=Off-axis collimation geometry=
 
=Off-axis collimation geometry=
[[File:beam_up_down4.png]]<br><br>
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[[File:beam_up_down5.png]]<br><br>
  
  
 
[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back]
 
[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back]

Revision as of 07:22, 17 May 2010

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Some measurements of 90 experimental degree exit port

Exit port1.png

Critical angle and displacement calculations

[math]\Theta = \frac{m_ec^2}{E_{beam}} = \frac{0.511\ MeV}{44\ MeV} = 0.67\ ^o[/math]

Kicker angle and displacement calculations

1 foot = 30.48 cm

accelerator's side wall

[math]\Delta = 286\ cm\ *\ \tan(0.67^o) = 3.34\ cm[/math]

[math]x^2+x^2 = 3.34^2\ cm \ \ \Rightarrow\ \ x = 2.36\ cm[/math]

[math]\Delta = 2.36\ cm \ \ \Rightarrow\ \ \tan^{-1}\left(\frac{2.36}{286}\right) = 0.47\ ^o[/math]

detector's side wall

[math]\Delta = (286\ cm + 183\ cm)\ *\ \tan(0.67^o) = 5.48\ cm[/math]

[math]\Delta = (286\ cm + 183\ cm)\ *\ \tan(0.47^o) = 3.85\ cm[/math]

Off-axis collimation geometry

Beam up down5.png


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